Hi DavidR,
I think you are correct. I shall now leave it well alone. I did extract it to C:\Suspect, and tried to rename it. However, Avast immediately detected 'wyskq6lt.exe' as 'Win32:Malware-gen'. So I moved it to the chest again and ensured 'send to Avast' was also ticked.
DavidR, I have PMed you. if you could kindly respond, it would be much appreciated.
Thanks,
Avastfan1